Het`er*og"a*my (?), n. [See Heterogamous.]
The process of fertilization in plants by an indirect or circuitous method; -- opposed to orthogamy.
That form of alternate generation in which two kinds of sexual generation, or a sexual and a parthenogenetic generation, alternate; -- in distinction from metagenesis, where sexual and asexual generations alternate.
Claus & Sedgwick.
© Webster 1913.